Re: getting the number of rows affected by a query

From: Sam Mason <sam(at)samason(dot)me(dot)uk>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: getting the number of rows affected by a query
Date: 2007-11-16 12:56:21
Message-ID: 20071116125621.GU1955@frubble.xen.chris-lamb.co.uk
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On Fri, Nov 16, 2007 at 12:51:07PM +0000, Raymond O'Donnell wrote:
> On 16/11/2007 10:02, Sam Mason wrote:
>
> > SELECT COUNT(*) FROM (
> > DELETE FROM foo RETURNING 1) x;
>
> I haven't played with this yet, but AFAICS this will simply return the
> integer value "1".

I currently get a syntax error, hence the way I wrote my message.

I'd not expect it to return 1 though. The "1" is there simply to be
easy to evaluate, maybe "*" would have been better. This 1 would get
returned to the outer query, which would end up counting the number of
rows deleted.

Sam

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